Dear Julie,

Hi! How are things? Thanks a lot for your last letter. I`m very sorry I haven`t written to you earlier. In fact, I was busy preparing for my exams which are finally over. How is your family? By the way, have you passed your driving exam?
I`m just writing to tell you about grandfather. I know you respect old people.You know my grandpa will celebrate his 100th birthday next month. It`s great! Can you imagine yourself being 100 years old? Anyway, my grandpa looks smart and strong. Every morning he does some workout and eats only healthy food. I think it helps him to be so fit. Also, he is always optimistic and positive. I`m sure it is very important.
What about your holiday? Have you already planned anything? If not, you are more than welcome to join us during birthday.
Got to go- my mom`s calling me! Write soon and tell me what do you think about my invitation.

All the best,
Alvita